[ka-Map-users] Re: selection sets
neuhausr at bitstream.net
neuhausr at bitstream.net
Wed Sep 19 13:59:59 EDT 2007
The ka-explorer demo page has a polygon query (countries)
Links to more apps
Also, I'm not sure if you've looked at the following pages on the ka-map
wiki yet, but if not, they may be helpful. The Query page explains how to
use Templates with Mapserver queries.
I mention this second one because though I like ka-map, it wasn't the
right fit for my current needs (mainly because of the tiling).
> To be honest I haven't worked too much with the ka-map query system,
> especially with vector data. However, I do plan on working on this soon.
> What you've described actually sounds fairly easy to implement. Mapserver
> takes care of selecting the objects that fall within the bounding box
> and returns the attributes of the results (I believe). So ka-map is
> actually just allowing you to define the rectangle and it sends that
> rectangle to Mapserver which executed the query.
> I suggest you check out 2 things:
> First, Mapserver's documentation of its query system.
> Second, take a look at map_query_float.php in the ka-map source. It takes
> the query bounding box as arguments, makes the mapserver call, and then
> echoes the results to an HTML div waiting for the reply.
> Hope it works! We'll all love to see the app you come up with!
> On 9/18/07, Fox, Alistair D (SKM) <AFox at skm.com.au> wrote:
>> Thanks Sam,
>> I would assume if you can do a query on point data then line and polygon
>> data would be the same. Just a few techy questions. I gather to be able
>> do this the source data would need to be served out from a mapserver
>> instance. Are there any examples of this out on the web. I'm yet to see
>> On a scale of 1-10 how difficult would it be to develop what my client
>> after. Eg: draw rectangle and select spatial objects (point/ line /
>> and then return attributes of selection for further manipulation.
>> *From:* Samuel Hiatt [mailto:samhiatt at gmail.com]
>> *Sent:* Tuesday, 18 September 2007 12:50 AM
>> *To:* Fox, Alistair D (SKM)
>> *Cc:* ka-map-users at lists.maptools.org
>> *Subject:* Re: [ka-Map-users] selection sets
>> Hi there Alistair!
>> Yes! ka-map is the answer to all your problems! :p You can definitely
>> do a query on point data with a rectangle bounding box. I couldn't help
>> too much with the details of it as I work mainly with raster data at
>> point, but there are plenty of us around here who would be happy to help
>> get kamap set up and running!
>> On 9/16/07, Fox, Alistair D (SKM) <AFox at skm.com.au> wrote:
>> > Hi. I'm a newbie to Ka-map and are looking to confirm potential
>> > functionality for a client. From what i have seen so far this is an
>> > execellent project.
>> > One of the requirements my client has is the ability to do the normal
>> > GIS function of dragging a rectangle over the map and be able to
>> select the
>> > features that are within that area. Then the ability to working with
>> > selection set. e.g: display attributes about the features.
>> > What i need to know is can you do this at the moment, (i havn't seen
>> > examples) and if not is it possible with some customisation.
>> > Hope someone out there can help.
>> > Alistair
>> > SKM is committed to working with its clients to deliver a sustainable
>> > future for all. Please consider the environment before printing this
>> > Notice - This message contains confidential information intended only
>> > for the exclusive use of the addressee named above. No confidentiality
>> > waived or lost by any mistaken transmission to you. If you have
>> > this message in error please delete the document and notify us
>> > Any opinion, text, documentation or attachment received is valid as at
>> > the date of issue only. The recipient is responsible for reviewing the
>> > status of the transferred information and should advise us immediately
>> > receipt of any discrepancy.
>> > All email sent to SKM will be intercepted, screened and filtered by
>> > or its approved Service Providers.
>> > _______________________________________________
>> > ka-Map-users mailing list
>> > ka-Map-users at lists.maptools.org
>> > http://lists.maptools.org/mailman/listinfo/ka-map-users
>> SKM is committed to working with its clients to deliver a sustainable
>> future for all. Please consider the environment before printing this
>> Notice - This message contains confidential information intended only
>> the exclusive use of the addressee named above. No confidentiality is
>> or lost by any mistaken transmission to you. If you have received this
>> message in error please delete the document and notify us immediately.
>> Any opinion, text, documentation or attachment received is valid as at
>> date of issue only. The recipient is responsible for reviewing the
>> status of
>> the transferred information and should advise us immediately upon
>> receipt of
>> any discrepancy.
>> All email sent to SKM will be intercepted, screened and filtered by SKM
>> its approved Service Providers.
More information about the ka-Map-users